Reporting abuse to ISP that goes nowhere

Apologies for the operational content. =)

I've been working with a client who has been the victim of several SQL
injection attacks. These attacks are being used to insert links to malicious
javascript hosted elsewhere using the following domains:

I've reported the abuse several times to the abuse contact listed by ARIN,
but it seems to simply be a blackhole at Verizon Business (their address
space). How have others handled this problem? Also, if there is a more
appropriate forum for this question and forthcoming discussion, please let
me know.


If you forward me your ticket numbers privately, I'll take a look. Despite popular belief, we actually have an active abuse team of good folks who care about abuse issues!